The state Department of Labor and Industries calculates the minimum wage each year as required by Initiative 688, approved by Washington voters in 1998.

The 13-cent-per-hour increase reflects a 1.455 percent increase in the Consumer Price Index for Urban Wage Earners and Clerical Workers over the last 12 months ending Aug. 31. The increase was announced earlier this month by the federal Bureau of Labor Statistics.

Washington is one of 10 states that adjusts the minimum wage based on inflation and the index, and has the highest minimum wage. Oregon is No. 2, with a 2014 minimum wage of $9.10 per hour.

Workers in both agricultural and non-agricultural jobs are covered by Washington’s minimum wage law, although 14- and 15-year-olds may be paid 85 percent of the adult minimum wage, or $7.92 per hour in 2014.